IDENTIFIERS

  • Current Taxon Name (Soil Name): Tubac
  • OSD
  • Series Extent
  • User Site ID: S1979AZ003010
  • User Pedon ID: 79AZ003010
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 79P0272
  • NCSS Pedon Lab Data NASIS Record ID - 47005
  • Print Date: 9/24/2024

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 31.7119446
  • Std. Longitude: -109.7936096
  • Datum: WGS84
  • Township: 20S
  • Range: 25E
  • Section: 9
  • PLSS Details: 488 meters W and 275 meters S of the NE corner
  • Location Description: Cochise County, AZ. 12 km W 3 km N of Elfrida.
  • State: Arizona
  • County: AZ003—Cochise

    • PEDON

  • Describers Name: S. D. Hutchinson and D. S. Pease
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 10
  • Sampled As Information:
  • Soil Name - Tubac
  • Taxonomic Class - Fine, mixed Ustalfic Paleargids
  • Classificaton Date - 6/1/1979
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: alluvial fan
  • Runoff: medium
  • Drainage Class: very poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1979 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    2

    —

    —

    394

    —

    90

    —

    —

    —

    —

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    1A11—0 to 5 centimeters (0.0 to 2.0 inches); brown (7.5YR 5/4) interior, brown (7.5YR 4/4) interior, moist; gravelly sandy clay loam; weak medium platy structure; soft, very friable, nonsticky, nonplastic; 5.5 very fine roots; 2.5 fine and medium tubular and 5.5 fine interstitial pores; 25 percent by volume 2-39-75 millimeter mixed fragments; strongly acid, pH 5.5, hellige-truog; abrupt smooth boundary. Lab sample # 79P01442. Few very fine vesicular pores.; many very fine roots
    1A12—5 to 18 centimeters (2.0 to 7.1 inches); reddish brown (5YR 5/4) interior, reddish brown (5YR 4/4) interior, moist; gravelly sandy loam; weak medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; 5.0 very fine and fine roots and 0.5 medium roots; 0.5 fine and medium tubular and 5.5 fine interstitial pores; 20 percent by volume 2-39-75 millimeter mixed fragments; neutral, pH 7.0, hellige-truog; abrupt wavy boundary. Lab sample # 79P01443. common to many very fine and fine roots; few medium roots
    1A2—18 to 20 centimeters (7.1 to 7.9 inches); light brown (7.5YR 6/4) interior, brown (7.5YR 5/4) interior, moist; sandy loam; massive; soft, very friable, nonsticky, nonplastic; 2.5 very fine roots; 0.5 very fine and fine tubular and 5.5 very fine interstitial pores; 10 percent by volume 2-39-75 millimeter mixed fragments; neutral, pH 7.0, hellige-truog; abrupt wavy boundary. Lab sample # 79P01444. common very fine roots
    1B21t—20 to 51 centimeters (7.9 to 20.1 inches); reddish brown (2.5YR 4/4) exterior and dark red (2.5YR 3/6) crushed, reddish brown (2.5YR 4/4) interior and dark red (2.5YR 3/6) interior, moist; clay; strong medium prismatic, and strong medium angular blocky structure; very hard, firm, very sticky, very plastic; 2.5 very fine roots and 0.5 fine and medium roots; 2.5 very fine and fine interstitial pores; 55 percent clay films on faces of peds and 55 percent clay films in root channels and/or pores; 5 percent by volume 2-39-75 millimeter mixed fragments; slightly alkaline, pH 7.5, hellige-truog; clear wavy boundary. Lab sample # 79P01445. many clay films surface features on faces of peds; many clay films surface features in root channels and/or pores; common very fine roots; few fine and medium roots
    1B22t—51 to 76 centimeters (20.1 to 29.9 inches); red (2.5YR 4/6) interior and yellowish red (5YR 5/6) interior, dark red (2.5YR 3/6) interior and yellowish red (5YR 4/6) interior, moist; sandy clay loam; weak coarse subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 5.5 very fine and fine roots; 2.5 fine tubular pores; 37 percent clay films in root channels and/or pores and 37 percent clay films on faces of peds; 10 percent by volume 2-39-75 millimeter mixed fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 79P01446. common clay films surface features in root channels and/or pores; common clay films surface features on faces of peds; many very fine and fine roots
    1B31tca—76 to 99 centimeters (29.9 to 39.0 inches); strong brown (7.5YR 5/6) interior and pinkish white (7.5YR 8/2) interior, strong brown (7.5YR 4/6) interior and brown (7.5YR 5/4) interior, moist; gravelly sandy loam; massive; slightly hard, friable, slightly sticky, nonplastic; 0.5 very fine and fine roots; 5.5 very fine and fine tubular and 0.5 medium tubular pores; 55 percent clay films between sand grains and 55 percent clay films in root channels and/or pores; 20 percent by volume 2-39-75 millimeter mixed fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; gradual wavy boundary. Lab sample # 79P01447. many clay films surface features between sand grains; many clay films surface features in root channels and/or pores; few very fine and fine roots
    1B32tca—99 to 155 centimeters (39.0 to 61.0 inches); pink (5YR 8/3) interior and light reddish brown (5YR 6/4) interior, light reddish brown (5YR 6/4) interior and yellowish red (5YR 5/6) interior, moist; gravelly sandy clay loam; massive; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine and fine roots; 5.5 very fine and fine tubular and 0.5 medium tubular pores; 37 percent clay films between sand grains and 37 percent clay films in root channels and/or pores; 20 percent by volume 2-39-75 millimeter mixed fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; clear wavy boundary. Lab sample # 79P01448. common clay films surface features between sand grains; common clay films surface features in root channels and/or pores; few very fine and fine roots
    1C1ca—155 to 163 centimeters (61.0 to 64.2 inches); pinkish white (7.5YR 8/2) interior, light brown (7.5YR 6/4) interior, moist; gravelly sandy loam; massive; very hard, firm, slightly sticky, nonplastic; 0.5 very fine roots; 5.5 very fine tubular pores; 30 percent medium carbonate nodules; 20 percent by volume 2-39-75 millimeter mixed fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog. Weakly cemented lime.; many medium lime nodules concentrations; few very fine roots